Colour vision modes: Protan, Deutan and Tritan in Preferences › Graphics (#778) (#1007)

Colour vision modes (Protan, Deutan, Tritan) in Preferences > Graphics, with palettes, shader and icon colours adapted per mode, translations and tests.

crates/ui-egui/src/icons.rs

@@ -2,6 +2,8 @@
 #[path = "../../../assets/icons/ui/source/icons.rs"]
 mod source;
 pub use source::paint;
+#[cfg(test)]
+pub(crate) use source::paint_with;
 #[path = "../../../assets/icons/ui/source/glyphs.rs"]
 pub(crate) mod glyphs;
 #[path = "../../../assets/icons/ui/source/markers.rs"]